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Bogdan [553]
3 years ago
11

PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Chemistry
2 answers:
Leto [7]3 years ago
8 0

Answer/Explanation:

Differences in temperature in the mantle cause convection currents. If it weren't for these convection currents wouldn't exist.

zepelin [54]3 years ago
4 0

Answer:

Explanation:

The answer is A. temperature differences in the mantle.

Explanation: A change in temperature will change the mantle's density. The heavier mantle will drop down while the lighter mantle will float up; forming a convection flow.

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Ventilator should be kept in our room give reasons of science ​
Firlakuza [10]

Answer:

Ventilators are provided in the rooms at the top of the roofs because if the air inside the room gets hot, the hot air rises up and flows through these ventilators and thus cool air remains at bottom. Thus ventilators maintain conventional currents to keep the air fresh in the room.

Explanation:

7 0
2 years ago
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A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen (by mass). calculate the empirical formula.
Eva8 [605]
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3 years ago
A sample of the chiral molecule limonene is 62% enantiopure. what percentage of each enantiomer is present? what is the percent
ikadub [295]

The mixture contains 62 % one isomer and 38 % the enantiomer.

Let’s say that the mixture contains 62 % of the (<em>R</em>)-isomer.

Then % (<em>S</em>) = 100 % -62 % = 38 %

ee = %  (<em>R</em>) - % (<em>S</em>) = 62 % -38 % = 24 %


6 0
3 years ago
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what is the correct conversion factor by which to multiply to convert moles of nitrogen to moles of ammonium nitrate (NH4NO3)
Ostrovityanka [42]

Answer:

0.5

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the conversation factor is 0.5

6 0
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Qué permite las reacciones de redox
liberstina [14]

Explanation:

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